A fairly comprehensive range of methods and test parameters can be found in publications on SMA fatigue properties. For example, in Australian research (Stephenson and Bullen, 2002) the strain-controlled mode was used to conduct a four-point bending beam test at 20°C, with continuous haversine loading at a frequency of 10 Hz and a range of strain levels from 100 to 1000 pe. On the grounds of the test results, it can be stated that the fatigue limit of an SMA mixture is higher than a comparative specimen of AC.
The concept of workability has been used for determining a series of mixture properties significant at the time of placement of a pavement. Workability is the property that determines the ability of a mixture to be placed mechanically or spread manually and finally compacted (Asphalt Institute Handbook MS-4, 1989; Gudimettla et al., 2003). Naturally, compactability is a feature of less extensive significance, so it is a reflection of workability.
Obviously, workability is affected by the content and type of binder and the mixture temperature. It has been stated in U. S. research (Gudimettla et al., 2003) that workability is also influenced by the properties of the aggregate mix and the maximum particle size.
